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A preparation method of bean dregs-based nitrogen-boron co-doped porous carbon material

A porous carbon material, bean dregs-based nitrogen-boron technology, applied in the field of material science, can solve the problems of high price and complex preparation process, and achieve the effect of simple method, various types, and compact internal structure

Active Publication Date: 2022-03-15
宿州学院
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  • Claims
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Problems solved by technology

[0005] In order to overcome the problems in the prior art that the preparation process of carbon materials for preparing electrodes is complicated and expensive, the present invention provides a method for preparing soybean dregs-based nitrogen-boron co-doped porous carbon material electrodes

Method used

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  • A preparation method of bean dregs-based nitrogen-boron co-doped porous carbon material
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  • A preparation method of bean dregs-based nitrogen-boron co-doped porous carbon material

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Embodiment 1

[0052] The main experimental drugs of the present invention include: potassium ferrate (VI), boric acid, 1-methyl-2-pyrrolidone, potassium hydroxide, polyvinylidene fluoride, hydrochloric acid, sulfuric acid, polyvinyl alcohol, graphite paper, deionized water, Acetylene black, thiol protease, sodium thiocyanate, potassium thiocyanate, phenol, butanol, novolac resin containing polyethylene glycol; main instruments include electronic analytical balance, magnetic stirrer, electric heating constant temperature drying oven, tube resistance Furnace, plasma cleaner, vacuum filter, electrochemical workstation, X-ray diffractometer (XRD), scanning electron microscope, Raman spectrometer.

[0053] A preparation method of bean dregs-based nitrogen-boron co-doped porous carbon material is a one-step impregnation carbonization activation method, comprising the following steps:

[0054] (1) The bean dregs are boiled for 1 hour, fermented, washed and freeze-dried to form dry bean dregs, and ...

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Abstract

The invention provides a method for preparing a bean dregs-based nitrogen-boron co-doped porous carbon material, which is characterized in that the method is a one-step dipping and carbonization activation method, comprising the following steps: (1) pretreating the bean dregs: boiling, fermenting , Add catalyst to the fermented bean dregs to catalyze, freeze-dry after washing; (2) add deionized water to the pretreated bean dregs, add activator and boron source to stir and mix, transfer to a petri dish, put into a drying box (3) heat-treat the bean dregs processed in step (2), soak them in HCl solution after cooling down, wash them, and finally obtain the processed bean dregs through microwave drying; (4) process the bean dregs after step (3) A binder and a pore-forming agent are added to the bean dregs, and the bean dregs-based porous carbon material is formed after mixing. The invention adopts a one-step dipping and carbonization activation method. Compared with the prior art, the one-step dipping and carbonization activation method has the advantages of simple method, low energy consumption and the like.

Description

technical field [0001] The invention relates to the technical field of material science, in particular to a method for preparing a bean dregs-based nitrogen-boron co-doped porous carbon material. Background technique [0002] Driven by rapid industrial development and increasing world population, energy shortage and environmental pollution have become two major problems hindering human development. Therefore, the development of efficient, stable, green and sustainable new energy conversion and storage devices can not only meet the needs of rapid social development but also alleviate the increasingly serious environmental problems. At present, among various energy storage devices, electrochemical energy storage devices are research hotspots, including lithium-ion batteries, nickel-metal hydride batteries, and supercapacitors. Supercapacitors have attracted worldwide attention because of their advantages such as fast charging speed, high safety, and no pollution. [0003] At...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/324C01B32/348H01G11/34H01G11/44H01G11/86
CPCH01G11/34H01G11/44H01G11/86C01B32/324C01B32/348Y02E60/13
Inventor 朱光张莉
Owner 宿州学院
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